73622640401 has 8 divisors (see below), whose sum is σ = 77955823080. Its totient is φ = 69289728768.

The previous prime is 73622640389. The next prime is 73622640449. The reversal of 73622640401 is 10404622637.

It can be written as a sum of positive squares in 4 ways, for example, as 3968874001 + 69653766400 = 62999^2 + 263920^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73622640401 is a prime.

It is a super-2 number, since 2×73622640401² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73622640461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835895 + ... + 919763.

It is an arithmetic number, because the mean of its divisors is an integer number (9744477885).

Almost surely, 2^73622640401 is an apocalyptic number.

It is an amenable number.

73622640401 is a deficient number, since it is larger than the sum of its proper divisors (4333182679).

73622640401 is a wasteful number, since it uses less digits than its factorization.

73622640401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135523.

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 73622640401 in words is "seventy-three billion, six hundred twenty-two million, six hundred forty thousand, four hundred one".